Question

What is meant by atomicity? Explain with two examples.

Answer 1

Atomicity :

Atomicity referes to the number of atoms present in a single molecule of an element, substance or compound. It can also be considered as the nature of molecules. According to atomicity of a substance, it can be Mono, Di, Tri or Poly atomic
For example, oxygen or $O_2$ is diatomic because it has 2 atoms in its molecule. Ozone or $O_3$ is triatomic because it has 3 atoms in its molecule.